LIGUUS CORONA. 181 



the cuticle becoming heavier and olivaceous- chest nut or decidedly green 

 in streaks on the latter half of the last whorl, where there are usually 

 some ill-defined varices ; the upper portion of the spire either flesh-pink 

 or whitish ; the markings consisting of some oblique brown streaks, and 

 a narrow median articulated band on the spire, the band becoming ob- 

 solete on the last one or two whorls, which are variously figured with 

 wedge-shaped, light-bordered, purplish spots, or short lines transverse 

 to the growth stride, or both; often with some irregular, longitudinal 

 purplish streaks. 



Aperture white inside, the peristome white, without a dark border 

 within; columella with a prominent callous fold above, truncated 

 below, brown, with more or less of the edge white ; parietal wall and 

 reflexed columellar callous black or nearly so. 



Alt. 84, diam. 37, longest axis of aperture 39^ mill., whorls 8^. 



Alt. 71, diam. 45, longest axis of aperture 36^ mill., whorls 7. 



Alt. 70, diam. 32, longest axis of aperture 35 mill. 



Alt. 70, diam. 31, longest axis of aperture 33 mill., whorls 8^. 



Moyobamba Peru (Moricand, Cuming, in R. Swift colln.); Napo 

 Ecuador (Martinez); "Brazil" (Hup6 in Castelnau). 



Bulimus regina d'Orb., REEVE, Conch. Icon, v, pi. 27, f. 168a. 



Achatina regina Fer., PFR., Conchyl. Cab., p. 362 (in part), pi. 

 47, f. 1, 2 A. regina Swains., REEVE, Conch. Syst. ii, p. 86, pi. 

 177, f. 7. 



Bulimus regalis HUPE, in Castelnau, Exped. dansl'Amer. du Sud, 

 Moll., p. 34, pi. 10, f. 3 (1857); cf. PFR., Malak. Blatt. 1859, p. 49. 

 Orthalicus regalis, PFR., Monogr. vi, p. 201. Orthalicus regina 

 Fer., HIDALGO, Journ. de Conchyl. 1870, p. 64; Moluscos del Viaje 

 al Pacifico i, p. 134. Corona regina MILLER, Malak. Blatt. xxv, p. 



185 COUSIN, Bull. Soc. Zoo'l. France 1887, p. 193 (exclusive of 



most of the references and localities). 



Orthalicus ( Corona) regina SHUTTLE WORTH, Notitiae Malacologies 

 i, p. 66 (exclusive of part of references). PFR., Monogr. iv, p. 591 

 (excluding part of the references). 



Distinguished from all the foregoing species of the group by its 

 white peristome. There is no peripheral band on the adult shell ; but 

 the young, and often the spire of old specimens, shows an articulated 

 or dotted band almost concealed at the suture. The markings con- 

 sist of short lines or streaks transverse to the growth-striae, with 

 usually some wedge-shaped spots and longitudinal purplish streaks, 



